Cross-arm for electric or signal wires.



No. 816,981. PATENTED APR. 3, 190a.

' A. H. ILIOHAN.

GROSS ARM FORBLEGTRIG 0R SIGNAL WIRES.

APPLICATION FILED MAB..21,1905.

2 SHEETS- SHEET 1.

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PATENTED APR. 3, 1 906 A. H. ILIOHAN.

CROSS ARM FOR ELECTRIC 0R SIGNAL WIRES.

APPLICATION FILED MAR. 21, 1905.

2 SHEETS-SHEET 2.

, moisture from coming in cont act with the other preferred sulatorsupport greater than that arm, and thence to-the next pin or bolt andSpecification of Letters Patent.

Patented April 3 1 906.

series. The several parts may be readily disposition or associated by alineman, and the proportions, dimensions,

Y e varied to compen- 6o useful mprovements in Cross sate for variousapplications and uses. It is Electric or Signal Wires of WhICh thefollow a so intended to vary the materialsin the coning is aspecification.

s inventionrelates to a cross-arm for telephone and telegraph poles, orit may serve as a means for holding wires at any other points where itmay be found applica le.

struction of the several '0 the particularly applied insulating devicesit will be understood that glass, porcelain, wood, or compositesubstances may be employed.

In the drawings, Figure 1 is a perspective view of apart of a pole,showing the improved cross-arm applied thereto. ig. 2 IS an enlargedtransverse parts, and in the use vertical section through moreparticularly intended to prevent the si the cross-arm, taken in theplane of location na s on a telephone or telegraph wire meetm of one ofthe pins, bolts, or insulator supwith interference by being crossed withanports Fig. 3 is a detail elevation of one of other circuit on the samepole during rainy the loc ing organizations for a part of the'75 orfoggy weather. insulating and protecting means. 4 is he cross armessentially consists of a a detail perspective view 'of a portion of apiece of timber or other suitable material pole an the improvedcross-arm showing a aving a protective covering dependin slightmodificatlon 1n the position of the intherebelow in the form of a skirtand surs ators Fig 5 is an eldvation of a portion rounding the sides andends and carr 'ng of the pole and cross-arm, showing a further one ormore pins which depend therefrom jmodification in the position of theinsulators and project upwardly above the arm proper imllar numeralsindicate corresponding at a distance from the side of the latter andparts in the different views.

have terminally Referring to Figs. 1, 2, and 3, the numeral designatesthe body of the arm, which can be of any suitable length and thicknessand constructed from any referred material; -wood being well adapte forordinary urposes. Covering-strips 2, 0t

insulators. e pin or inis headed in the body of the arm and capped by aninsulating means located on the top of said body over the sides and endsstrips extending fully structed a ther effective auxihar of t e bodyfrom the u per edge of the latter, 5 t e part of the pin passingdownwardly from and th e upper termina s of the strips are beveleddownwardly, as at 3, ready escape therefrom of may settle on the top ofthe arm as an entirety. Any moisture that flows downwardly over theouter surface of the stri s is deflected ofi from the lower terminal 0the skirt by outwardly-inclined lower surfaces 4, whic are provided bthickening the said lower terminal of the s irt or the strips composingthe latter. This thickening of the ower terminal of the'sk irt alsostren thens e same and tends to keep the entire siirt in The body 1 hasone or pins or bolt to insure a flow or skirt is protected by aninsulatingtube, prefanymoisture that erably of glass, aving an interiordiameter of the pin and terminating coincidentally with the lower endofthe skirt. 's means for protecting the pin, bolt, or support for theinsulator with respect dy of the arm-and also shielding the arm by askirt surrounding the same and depending therebelow has the advantageouseffect of obstructing conveyance of the curfrom one insulator down thedust, dirt,

or moisturecovered pin or bolt to the cross proper normal shape.

.more vertical op mngs or holes 5 extending shown equipped in thepresent instance with member 8"above the top tial shoulder .17 to snuglybear The lower extremity .body,

four insulators and as'many plns, bolts, or supports 6, which extendthrough the said openings 5. The number of the pins, bolts, or supports6 is not essential, however, an in lieu of the ordinary short pin forsupporting the insulators each pin or bolt in the present instance is ofconsiderable length and depends below the lower terminal of theskirt 2and is deflected to one side b a bend or-elbow 7 and continued upwardyin a vertical of the body 1 tomeeive a orcelain, glass, or otherinsulator 9, of usua construction. Each pin or bolt 6 has considerablebearing di' extent within the body .1 to strengthen the entirestructure, and around the upper terminal of each opening or hole 5 anut-cavity 10 is formed in the into which the upper screw-threaded end11 ofthe pin or bolt projects to receive a nut 12, cooperating with awasher 13, bearing on the floor of the cavity. The wall of the cavity isscrew-threaded, as at 14, to receive the depending screw-threaded member.15 of a cap 16, the cap also having a circumferenon the upper sideoredge of the bodyl around the cavity. of themember 15does not, contactwith the floor of the cavity, and the cap has an inner central recess 18of such dimensions as to fully inclose the nut without contacting withthe latter or the pin or bolt extremity. The cap 16 is readilyapplicable to and removable from the cavity 10 and is composed of anysuitable insulatingmaterihl, and by the use of this cap the nut andboltare completely shielded from the weather and rendered more durable,and moisture is 'the'reb prevented from runmng-downoverthe bo t andermeating the body .1. :Dirt

- and dust are a' so prevented by-thiscapfrom respect to the body 1.

' collectingaround the upper end of-the {Pill-01 bolt. To facilitate theap licatlon of the nut 12 to the upper screwity 11 of-the pin or bolt 6,the latter hasa collar. .or stop projection .19 surrounding the sameat..a suitable distance from its screwthreaded extre 'ty .1I1 and adapted-to bear against the underside ofthebody 71. This collar or stopprojection 19 also assists in the lt Wltll accurate assemblage of'thepin or be The cross-arm .as

therethrough, the arm being tubular inclosure being such as to clear thepin or bolt. The sleeve or tubular inclosure 20 may be'of anythicknessand preferably terminates I at its lower end coincidentally with thelower end of theskirt and is thus shielded by the latter. The upper endof the sleeve or tubular inclosure is let into a groove 21 in \the underside of the body 1 and surrounding the lower terminalof each openingor-hole 5. The upper end of the sleeve or tubular inclosure is formedwith diametricallyopposed supporting projections 22, which arepreferably engage inwardly-facing oppositely-disposed springcatchesoryielding l cks 23 0 early s own' by Fig. 3 and dependin from plates24, secured to the under side-o the body 1, close to the point where theupper end of the sleeve or tubular inclosure engages the groove 21. Thespring-catches or yielding locks 23 each have a pair'of jaws separatedat their lower extremities to permit the supporting projections 22 to bepushed upwardly therebetween in applying the sleeve or'tubular inclosureto -t e body '1. By means of these spring-catches or yieldinglocks andthe disposition of the upper terminal of the sleeve or tubular inclosurein thegroove 21 said sleeve or inclosure is reliably held in firmengagementwith the body 1, though capable of bein sired. It will a so beseen that-each of the pins or'bolts'be rovided with a double protectionaround t e -.portion thereof deending below the under side of 'the body1 of the skirt 2 and the sleeve or tubular in-' closure 20, and inassembling the'pins or bolts Iinthe body 1 the screw-threadedextremities 1-1 thereof canbe :readily pushed upwardly through thesleeveor tubular'inc'losure 2O and the openings orholes 5 to receivedhenuts.12. 1 After are then placed lII' POSltlOI'I, as shown.

In the @modification shown by Fig. 4 the same =referenee+numerals areapplied as in .the preceding figures, and theconstruction ofthe arm andwith'the exception that theilatter d'o-notproje'ct above the cross-arm,,

lower edge of'the armand proj ected laterally. In-the modificationvshown =by:Eig.-'5 theieonstruetion isalso similar-zto that heretoforesetthus far. described can-attimesbeusedWith forth by Figs. :1, 2 ,and3with xrespect to the out any other proteetive.-auxiliary;but torenicrosssar'ms, and the: ins 25 are-straightand tier-the cross-armorganization-more positive carry -insulator s,26 iren'tly-under lthelower in preventing surface-cross with @respect to edge or bottom of thecross -.-arm. These the several wires thatmaybecarriedthrebymodificationsein theiarra ementio'f thepins 7 sleeve-or v movabl'yattaehed;to =the-zunderside of (the and eonnectedato theinsulatorssu"theportion e Pr or bolts an elongated =msulating t'iibular vinclosingdevice ,20 is re or-rods are intended proved cross-armmayrbeemployed-with any orm 'of ;pin or red and -thatrthe insulaterorFrom the foregoing description at :will he l'observed, that moisture isprevented from the nuts are applied *thecaps 16 but-are :eurtailed- 'andthe insulators are positioned below the insulators do not have ito *belocated zinzany I ,precise manner to render ithe iarm efieetive. r

detached at any time de- 1115 orzrodsare duplicated,

:toxin ieate xthat Itheirncoming incontact any point near the cross-armbody.

aving thus described the invention, what is claimed as new is-' 1. n across-arm for the purpose set forth, a bod a continuous pin aving oneextrernity removably secured in the body and depending below the latterto one side and above'the same and having an insulator on its freeterminal, the secured end of the pin in the body being accessible fromthe top of the latter and also the body, and an insulating-cap relyapplied over. the end of the pin secured in the b per side of said body.

A cross-arm for the purpose set forth having a' body with a protectivecovering sides and ends of the same ,above the body, and an fieeterminal of the pin.

In a cross-arm for the purpose set forth, an insulating-body havingcavities formed in the pins above the body, securing devices aplied tothe extremities of the pins projecting into the cavities, andinsulating-caps removhe cavities over the securing devices and theextremities of the pins engaging the body, said insulatin 7 -capsbearing on the upper edge of the body and rendlering the securing meansfor the pins accessi- 4. In a cross-arm of the class set forth, aninsulating-body, pins secured in and depending below and to one side ofthe body and having insulators on their free extremities, and tubularinsulating-inclosures separably applied to the under side of the bodyaround portions of the pins.

5. In a cross-arm of the class set forth, an insulating-body, ing belowand to one side of the body and havng insulators ontheir freeextremities, and

.the under side insulating-inclosures removably applied to of the bodyaround portions of the pins.

6. In a cross-arm of'the class set forth, an

insulating-'body,,pins secured in and dependng below and to one side ofthe body and hav- P rtions of the pins depending from the body with thepins or bolts at Withdrawable'downwardly I ody and accessible from theup- .lating-caps removablyapplied side of the c osures removably appliedto pins secured in and dependand having projections at their terminalsand spring locking devices with which the said projections removably.engage.

In a cross-arm of the class set forth, an insulating-body, continuouspins secured in and depending below and to one side of the body andhaving insulators on their free extremities, insulating-inclosuresremovabl surrounding ortions of the pins depending below the b0 y andhaving their upper ter- Ininals inserted in the body, th tremities ofthe inclosures having pro ections an bly engage. n a cross-arm for thepurpose 'set forth, the combination of a body having a protectivecovering surrounding the 'sides and ends of the same and dependingtherebelow in the form of a skirt, tubular insulating-inclosures a pliedto the under side of the body within tl ie skirt, and continuous pins orbolts sethrough the inclosures below the skirt and outwardly from thelatter, the free terminals of the pins having insulators appliedthereto. tinuous pins or bolts secured in the said and dependin belowthe latter, the secured terminals of t e pins or bolts being exposed atthe, upper side'of the body, insulators on the free extremities of-thepins or bolts, insuto the upper bod over. the secured terminals of thepins or bolts, and tubular insulating-in the under side of the bodyaround portions of the pins or bolts.

nals of the pins or bolts being exposed at the upper side of the body,insulators on the free extremities of the pins or bolts, insulatingcapsremovablyapplied to the upper side of e bod over the secured terminalsof the pins or olts, and a protective covering ap plied to the sides andends ofthe body and extending below the latter in the form of a skirt.

11. In a cross-arm, an insulating-bodyhav ing openings extendingtherethrough and cavities in th e upper portion communicating with saidop enings, continuous pins or bolts body, and protective insulating-capsapplied 9.; In a cross-arm, an insulat1ngbody, conbody IIO 12. In across-arm, an insulating-body having 0' eningsitpxtending therethroughand g from the sides and ends a skirt epen or bolts inserted thereof,continuous pins through the openings of the body from the underside ofthe latter, means for securing thepins or bolts in the body, the saidpins or bolts projecting below the lower edge of the skirt and havinginsulators on their free ends, and insulating-inclosures removablyapplied around the-portions of the pins within the skirt. v

13. In a cross-arm, an insulatingbody having openings therethrough,pinsor bolts inserted 1D. the said openings and depending below the body torecei e-msulators, spring look devices secured in opposite positlonsWitnesses:

against the underside vof the body and having jaws separable at theirlower extremities,

and tubular. insulatinginclosures surroundends of t mg portions of thepins or bolts extending be low the body and provided with projectionsto'rerhovab enter between the said jaws and hold the inclosures in closerelation to the under side of the body. 7 j

14. In a cross-arm of the class set forth, an insu1ating-body,. inssecured in and depending below the b0 y and having insulators on theirfree eXtremities, tubular insulating-inclosures removably applied to theunderside of the body around portions of the pins, and

a skirt de ending from the body, the lower e tubular inolosuresterminating flush with the lower edge of the said skirt.

In testimony whereof I have hereunto set my hand in presence of twosubscribing wit- ANTHONY-H. iLroiIAN.

DANIEL CALNEN, Roma L. ELLZEY.

